Brooke, Christopher Nugent Lawrence.
Europe in the central Middle Ages, 962-1154. - 2nd edition /

. - London ; New York  : Longman,  1990 
. - XX, 524 p.  21 cm. 
 - ((A general history of Europe) )
<br/>К.: Бібліогр. : с. 475-487. 
<br/><label>  ISBN: </label>0-582-49391-9